CVE-2025-71303

/// Technical description

In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Fix race condition when checking rpm_on

When autosuspend is triggered, driver rpm_on flag is set to indicate that

a suspend/resume is already in progress. However, when a userspace

application submits a command during this narrow window,

amdxdna_pm_resume_get() may incorrectly skip the resume operation because

the rpm_on flag is still set. This results in commands being submitted

while the device has not actually resumed, causing unexpected behavior.

The set_dpm() is called by suspend/resume, it relied on rpm_on flag to

avoid calling into rpm suspend/resume recursivly. So to fix this, remove

the use of the rpm_on flag entirely. Instead, introduce aie2_pm_set_dpm()

which explicitly resumes the device before invoking set_dpm(). With this

change, set_dpm() is called directly inside the suspend or resume execution

path. Otherwise, aie2_pm_set_dpm() is called.

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References